feat(plantare): usable UI — commitments screen, add sheet, entry points

The reproduction-commitment (Plantare) UI, local-first and plain-spoken:
- A Plantares screen (drawer entry, /plantares) listing your commitments,
  grouped Open / Done, with a big 'mark returned', a menu (let it go / reopen
  / remove) and an empty-state that explains what a Plantare is.
- An add sheet (scrollable): a two-choice 'who reproduces & returns' (I return
  / owed to me), an optional 'with whom', an optional 'what comes back' in the
  grower's own words, and a note. No sale, no currency — a promise.
- Reachable from a seed too: an 'Add a commitment' action on the variety
  detail, pre-attached to that variety.
- i18n en/es/pt/ast (human words: 'Plantare' + a plain explanation).

Added the Plantares screen to the small-phone overflow guard (18 cases green).

apps/app_seeds/lib/i18n/en.i18n.json

@@ -37,6 +37,7 @@
     "chat": "Chat",
     "wishlist": "Wishlist",
     "following": "Following",
+    "plantares": "Plantares",
     "settings": "Settings"
   },
   "settings": {
@@ -555,5 +556,29 @@
   },
   "notifications": {
     "newMessageFrom": "New message from {name}"
+  },
+  "plantare": {
+    "title": "Plantares",
+    "help": "A Plantare is a promise to reproduce a seed and return some — how a variety keeps travelling from hand to hand. It's not a sale.",
+    "add": "Add a commitment",
+    "empty": "No commitments yet. When you share or receive seed with a promise to grow it out and return some, note it here.",
+    "iReturn": "I'll grow it out & return some",
+    "owedToMe": "They'll return some to me",
+    "direction": "Who reproduces & returns",
+    "counterparty": "With whom?",
+    "counterpartyHint": "A person or a collective (optional)",
+    "owed": "What comes back?",
+    "owedHint": "e.g. a handful next season (optional)",
+    "note": "Note (optional)",
+    "save": "Save",
+    "markReturned": "Mark returned",
+    "markForgiven": "Let it go",
+    "reopen": "Reopen",
+    "delete": "Remove",
+    "statusReturned": "Returned",
+    "statusForgiven": "Settled",
+    "openSection": "Open",
+    "settledSection": "Done",
+    "removeConfirm": "Remove this commitment?"
   }
 }